Question # 1

The aqueous solution of Borax

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Acidic

alkaline

Amphoteric

manual

Which one of following is used in cosmetics

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Talc

Asbestos

Sodium sulphate

Aluminium Sulphate

Which one of the following compounds of lead is red in colour

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PbO

Pb2O

Pb3O4

PbCO3

Aluminum reacts with nitrogen to form

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AIN

Al₂N

Al₂N₃

Al₄N₆

Which of the following elements is not present abundantly in earth's crust

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Silicon

Aluminium

Sodium

Oxygen

Corundum is

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Al2O3

Na2AlF6

Quartz

Calcium

Which electronic configuration corresponds to an element of group III-A of the Periodic Table

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1s²,2s²,2p⁶,3s²,3p¹

1s²,2s²,2p⁶,3s²,3p⁶,4s⁶

1s²,2s²,2p⁶

1s²,2s²,3s²,3p³

--------------- element forms an ion with charge 3⁺

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Beryllium

Aluminium

Carbon

Silicon

Aluminium is used for making petrol and milk storage tanks because it is

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Conductor

Non magnetic

Excellent reflected

Corrosion resistant

Aluminium does not corrode because.

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It is a semi metal

It is a silver shining metal

It does not react with O2

It forms a protective layer of Al2O3

Which element burns in nitrogen atmosphere to form nitride.

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Mg

Al

Both a and b

None of these

Which substance is water repellant and used in ceramic insulators.

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Asbestos

Lead compounds

Silicon carbide

silicones

Which element forms on ion wiht charge 3+

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Beryllium

Aluminium

Carbon

silicon

Which are correct oxidation states for lead

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+1, +2

+3 , +5

+2 ,+4

+4 only

Boric acid can not be used.

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As antiseptic in medicine

For washing eyes

In soda bottle

For enamels and glazes

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Chemistry Fsc Part 2 Chapter 3 Online Test MCQs With Answers

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